开发超疏水果汁用于粮食储存应用
Poonam Chauhan1, Aditya Kumar1
1Department of Chemical Engineering, Indian Institute of Technology, Indian School of Mines, Dhanbad, Jharkhand 826004, India.
Food chemistry
|June 8, 2025
概括
研究人员开发了超疏水性果汁袋,以保护储存的谷物免受水分损害. 这种创新的涂层显著减少了水的吸收,提高了谷物质量和保质期,防止在潮湿的条件下腐烂.
科学领域:
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
- 农业工程 农业工程
背景情况:
- 朱特纤维具有成本效益,可再生和生物降解性,非常适合用于谷物存储.
- 朱特的高吸水率是一个主要的限制,导致谷物腐烂.
- 开发耐水性果汁对于保持谷物质量至关重要.
研究的目的:
- 为了创建超疏水的木质材料,灵感来自于像莲花叶这样的自然表面.
- 为了提高木质的排水能力,而不会损害其机械强度.
- 为了评估超水柔特在储存期间保持谷物质量的有效性.
主要方法:
- 用性溶液处理汁液,然后涂上西兰涂层.
- 表面修改以实现协同粗性和低表面能量.
- 水接触角 (WCA) 和拉伸强度的表征.
- 谷物储存实验比较涂层和未涂层的果汁袋.
主要成果:
- 超疏水柔泥的水接触角度 (WCA) 达到了163°.
- 有涂层的果汁显著降低了水的吸收率 (3%对不涂层的500%).
- 在45天后,储存在涂层的果汁袋中的小麦显示出较低的水分含量 (12.7%与20.3%相比).
- 泄漏的西兰含量低于允许的安全限值.
结论:
- 超疏水性果汁为粮食储存中的防潮提供了持久有效的解决方案.
- 开发的涂层保持了木质的抗拉强度,同时大大提高了排水能力.
- 这项技术提高了谷物安全性,并通过减轻湿度引起的降解延长了保质期.
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